沈阳市五里河体育场爆破拆除方案与实施

Plan and on spot of blasting demolition of Wulihe Stadium in Shenyang city

针对沈阳市五里河体育场其自身结构及周边环境,尤其是迄今为止国内一次爆破拆除面积最大的建筑物等特点,采用毫秒微差、原地坍塌爆破法进行爆破拆除,其技术设计包括爆破预处理、爆破网络选择、爆破安全校核。爆破结果表明:体育场按设计顺序依次倒塌,爆破飞石、冲击波及爆堆高度完全控制在预计范围之内,爆破非常成功。该结果对一次爆破拆除大型建筑物具有一定的参考价值和指导意义。

In view of Wulihe Stadium in Shenyang city its structure and around environment, especially it is the most largest of national buildings to be demolished so far, so millisecond in-site collapse blasting is adopted, and technology design consists of blasting pretreatment, blasting network choice and blasting safety test. The blasting result shows that the stadium is collapsed orderly and blasting slungshot, bow wave and rockpile hight are controlled in design range entirely, namely,the blasting is very successful. The result has certain reference value and guidance significance to blasting demolition of arge buildings.